Multi-application follow-up

ABSTRACT

A system that responds to a user setting a follow-up flag on a message within a first communication application by associating the flagged message with another user, such that the flagged message is available to a second communication application. When a user sets a flag on an electronic mail message contained in an electronic mail mailbox provided by an electronic mail application, the system responds by associating the flagged message with another user in a list of other users with whom flagged messages are associated. When a communication session occurs with the other user through another communication application, the system checks the list and determines that a flagged message is associated with the other user. The flagged message is then brought to the attention of the local user, for example within a list of flagged messages associated with the other user displayed simultaneously with the instant messaging session.

FIELD OF THE INVENTION

The present invention relates generally to communication applicationsystems, and more specifically to a method and system for providing amulti-application follow-up mechanism.

BACKGROUND OF THE INVENTION

Users of communication applications often desire to store indicationsthat a follow up is required for one or more messages stored by anapplication. For example, electronic mail software applications mustoften deal with large numbers of electronic mail messages containedwithin the mail box structures provided by such applications. In orderto assist users in this effort, existing electronic mail softwareapplications allow the user to set follow up flags on specific messages,and/or to set up message rules that cause certain types of messages toautomatically be flagged. When a flag is set, a visual icon is placednext to the flagged message, for example within a list of messagescontained in a mailbox display object. These flags provide a visualindication of which messages in the mailbox need to be followed up on,and are sometimes referred to as “follow-up flags”. Through thismechanism, a user looking at their previously received messages canconveniently distinguish those messages that need to be followed up onby way of the visual flag icons displayed next to those messages. Whenthe user follows up on a flagged message, for example by replying to theflagged message with a reply electronic mail message, existing systemsallow the user to remove the flag from the message representation withinthe message list of the electronic mail mailbox, for example by clickingon the flag, or by simply deleting the flagged message itself if it isno longer needed.

A problem with follow up flags arises in environments where multiplecommunication applications are used. In existing systems, a user mayflag an electronic mail message for follow-up regarding a certain topicor question contained in the message. The user may subsequently beinvolved in a communication session through a different communicationapplication, such as an instant messaging session, and during thatsession the topic or question within the flagged electronic mail messagemay be addressed or resolved. However, the flag on the electronicmessage would not be removed, and the next time the user viewed theirelectronic mail messages they would mistakenly be led to believe that afollow-up was still required on the message because of the follow-upflag. This would be the case even though the follow-up had actually beenaccomplished, albeit through a different communication application, andtherefore independently with regard to the flagged message.

In Google's Gmail™, users are allowed to “follow up by chat” withanother user that has sent them an electronic mail message and that isalso listed within the receiving user's buddy list. To accomplish this,Gmail provides a hot link through which an instant messaging session canbe initiated with the sending user to follow up on the subject of anelectronic mail message. While this type of existing solutionfacilitates initiating an instant messaging session regarding a receivedelectronic mail message, it fails to tie together the instant messagingsystem with any follow up flag that may have been set on the receivedelectronic mail message.

Other existing systems have provided an automatic follow-up functionwithin electronic mail. In these systems, a user can set up a reminderto follow up on a specific previously received message. These systemsalso fail to tie an instant messaging system to a follow up flag thatwas set on a received electronic mail message

For the above reasons and others, it would accordingly be desirable tohave a new system that effectively ties a follow up flag set within afirst communication application, such as a flag set on an electronicmail message contained in a user's mailbox, to a second communicationapplication, such as an instant messaging system.

SUMMARY OF THE INVENTION

To address the above described and other shortcomings of previoussystems, a solution is disclosed that responds to a user setting afollow-up flag on a message within a first communication application byassociating the flagged message with another user, such that the flaggedmessage is available to a second communication application. In oneembodiment, when a user sets a flag on an electronic mail messagecontained in an electronic mail mailbox provided by an electronic mailapplication, the disclosed system responds by associating the flaggedmessage with another user (e.g. the user that sent the message) in alist of other users with whom flagged messages are associated. When acommunication session occurs with the other user through anothercommunication application, such as an instant messaging session, thedisclosed system checks the list and determines that a flagged messageis associated with the other user. The flagged message is then broughtto the attention of the local user, for example within a list of flaggedmessages associated with the other user that is displayed simultaneouslywith the instant messaging session. When the instant messaging sessionterminates, the disclosed system queries the local user as to whetherthey wish to remove any of the follow-up flags from flagged messagesassociated with the other user or any other session participants.Indications that flagged-messages exist for another user may also bevisually displayed in visual proximity to the icon or buddy list entryfor that other user within the local user's buddy list.

In another embodiment, if a flagged-message is associated with at leastone user who is a member of a user group, such as a group defined withinthe local user's buddy list, and a communication session is detectedwith any member of the group, the flagged message may be listed ordisplayed to the local user, and the local user may also be queried asto whether the follow up flag should be removed from the message whenthe session terminates. Additionally, when a user flags a messagereceived from a member of a user group, the disclosed system may operateto associate the flagged message with entries for each group member,thereby causing indications of the flagged message to be displayed invisual proximity to the buddy list entry for each group member until theflag is removed.

Thus there is disclosed an automated solution that effectively ties afollow up flag set within a first communication application, such as aflag set on an electronic mail message contained in a user's mailbox, toa second communication application, such as an instant messaging system.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to facilitate a fuller understanding of the present invention,reference is now made to the appended drawings. These drawings shouldnot be construed as limiting the present invention, but are intended tobe exemplary only.

FIG. 1 is a block diagram showing components in an illustrativeembodiment of the disclosed system;

FIG. 2 is a first flow chart showing steps performed during operation ofan illustrative embodiment of the disclosed system;

FIG. 3 is a first simplified screen shot showing examples of userinterface display objects generated by an illustrative embodiment of thedisclosed system; and

FIG. 4 is a second simplified screen shot showing examples of userinterface display objects generated by an illustrative embodiment of thedisclosed system.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

FIG. 1 is a block diagram showing hardware and software components in anillustrative embodiment of the disclosed system. As shown in FIG. 1,User 10 is associated with a Client System 12, which may include anElectronic Mail Client 14 that generates an Electronic Mail UserInterface 13, and an Instant Messaging Client 18 that generates anInstant Messaging User Interface 16. The Client System 12 also includesa List of Users Having Associated Flagged Messages 20. The ElectronicMail Client 14 operates together with a Electronic Mail Server 24 on aServer System 22 to provide an electronic mail service to User 10, andInstant Messaging Client 18 operates together with Instant MessagingServer 26 to provide an instant messaging service to User 10.

During operation of the components shown in the illustrative embodimentof FIG. 1, the Electronic Mail Client 14 responds to User 10 setting afollow-up flag on an

Patent Application electronic message displayed in a mailbox ofelectronic mail messages (e.g. User 10's Inbox) by associating theflagged message with another user. For example, the Electronic MailClient 14 may operate to automatically associate a received messageflagged by User 10 with the sending user of the message (i.e. the useridentified in the FROM: field of the message). The Electronic MailClient 14 may associate the flagged message with the sending user byproviding a list entry for the sending user in the List of Users HavingAssociated Flagged Messages 20, and by including an indication of theflagged message (e.g. a pointer or other message identifier) within thelist entry. If no entry already exists for the sending user of themessage in the List of Users Having Associated Flagged Messages 20, thenthe Electronic Mail Client 14 creates one for that user. Otherwise, ifat least one other flagged message was previously associated with thesending user of the message, then the Electronic Mail Client 14 adds anindication of the newly flagged message to a list of flagged messagesassociated with the sending user contained in the list entry for thesending user in the List of Users Having Associated Flagged Messages 20.

While the above operational example describes associating a flaggedelectronic mail message with the sender of the message, the disclosedsystem is not so limited. The disclosed system may, for example, bealternatively embodied to provide the User 10 with the ability to enteror otherwise select a specific other user that the flagged messageshould be associated with through the List of Users Having AssociatedFlagged Messages 20.

As shown in FIG. 1, the List of Users Having Associated Flagged Messages20 is also accessible to the Instant Messaging Client 18. The disclosedsystem subsequently operates to detect when User 10 is involved in aninstant messaging session provided by the Instant Messaging Client 18through Instant Messaging User Interface 16. When the instant messagingsession is detected, the disclosed system (e.g. the Instant MessagingClient 18) checks the List of Users Having Associated Flagged Messages20 to see if it contains an entry for any of the other users that areparticipating with User 10 in the instant messaging session. If so, thenthe disclosed system (e.g. the Instant Messaging Client 18) operates toprovide a visual indication to User 10 in Instant Messaging UserInterface 16 of those flagged messages associated through the List ofUsers Having Associated Flagged Messages 20 with other participants inthe instant messaging session. For example, a portion or all of aflagged electronic mail message or messages associated with otherinstant messaging participants may be displayed in a background userinterface window or windows positioned behind the user interface windowcontaining the instant messaging session provided in Instant MessagingUser Interface 16. Alternatively, a list showing the subjects of theflagged electronic mail messages associated with other instant messagingparticipants may be displayed within or adjacent to the user interfacewindow containing the instant messaging session in Instant MessagingUser Interface 16. For example, the subject of each such flaggedelectronic mail message may be provided as a link in list user interfaceobject, such that each message link may be clicked on by the User 10 toaccess the complete corresponding flagged electronic mail message.

When the instant messaging session provided in Instant Messaging UserInterface 16 terminates, the disclosed system (e.g. Instant MessagingClient 18) queries User 10 as to whether they wish to remove any of thefollow-up flags from the flagged messages associated with the otherparticipants in the instant messaging session. Such a query may, forexample, be provided through a display object generated within theInstant Messaging User Interface 16.

The disclosed system (e.g. Instant Messaging Client 18) further operatesto display indications that flagged electronic mail messages exist forbuddies of the local user in visual proximity to the icons or buddy listentries for those other users within User 10's buddy list, for examplewithin the Instant Messaging User Interface 16.

In another embodiment, the components of FIG. 1 may further operate inresponse to User 10 setting a follow up flag on an electronic mailmessage displayed in Electronic Mail User Interface 13 by determiningwhether the sending user of the message (or other specific user to beassociated with the flagged message) is associated with a user groupdefined within the instant messaging application, e.g. defined withinUser 10's buddy list. If so, then the disclosed system may operate toassociate the flagged message with each member of the user group in theList of Users Having Associated Flagged Messages 20.

While the List of Users Having Associated Flagged Messages 20 is shownin the illustrative embodiment of FIG. 1 as being contained in theClient System 12, those skilled in the art will recognize that the Listof Users Having Associated Flagged Messages 20 may alternatively bestored on a server system, such as the Server System 22. Similarly,those skilled in the art will recognize that while the embodiment ofFIG. 1 uses a client-server implementation, the disclosed system mayalternatively be embodied using a peer-to-peer architecture, in which noserver system is required. In such an alternative embodiment, theelectronic mail system and instant messaging system are provided throughclient systems, and operations otherwise performed by the Server System32 are performed in such client systems.

While for purposes of concise illustration only one user and clientsystem are shown in FIG. 1, those skilled in the art will recognize thatthe disclosed system may be embodied such that any specific number ofusers may use the disclosed system. Similarly, while for purposes ofconcise illustration only one server system is shown in FIG. 1, thedisclosed system may be embodied such that any specific number of serversystems are used to perform the operations described in association withthe Server System 32.

The Client System 12 of FIG. 1 may include any specific type of acomputer system and/or intelligent electronic device, such as a desktop,laptop, or palmtop computer system, or a personal digital assistant,cell phone, and/or other electronic device. Client System 12 may includeor control a display device that is capable of displaying a graphicaluser interface including Electronic Mail User Interface 13 and InstantMessaging User Interface 16 to User 10, such as a liquid crystal display(LCD), cathode ray tube (CRT), interferometric modulator display (IMOD),light emitting diode (LED), or the like.

Those skilled in the art will recognize that the Electronic Mail Client14 and Instant Messaging Client 18 may be embodied using software orfirmware, such as computer application program code, operating systemprogram code, middleware, and/or wholly or partly using digital hardwarecomponents, such as application specific integrated circuits (ASICs),field-programmable gate arrays (FPGAs), and the like, and/orcombinations of hardware and/or software or firmware. Those skilled inthe art will further recognize that the Client System 12 may include oneor more processors, and program storage, such as memory, for storingprogram code executable on such processors (e.g. Electronic Mail Client14 and Instant Messaging Client 18, and/or other application and/oroperating system program code), as well as other input/output devicesand/or other external interfaces.

Server System 32 may also be embodied as any specific type of computersystem including one or more processors, and program storage, such asmemory, for storing program code executable on such processors (e.g.Electronic Mail Server 24 and Instant Messaging Server 26, and/or otherapplication and/or operating system program code), as well as forstoring data and/or databases or the like. Server System 32 may furtherinclude a number of input/output devices and/or other externalinterfaces. Those skilled in the art will further recognize thatElectronic Mail Server 24 and Instant Messaging Server 26 may also beembodied using software or firmware, such as computer applicationprogram code, operating system program code, middleware, and/or whollyor partly using digital hardware components, such as applicationspecific integrated circuits (ASICs), field-programmable gate arrays(FPGAs), and the like, and/or combinations of hardware and/or softwareor firmware.

The Client System 12 and Server System 32 may be communicably connectedusing any specific kind of data communication network and/or protocol.

FIG. 2 is a flow chart showing steps performed during operation of anillustrative embodiment of the disclosed system. At step 30, thedisclosed system displays a list of electronic mail messages, forexample within a virtual mailbox structure (e.g. an “Inbox”) displayedin an electronic mail user interface. At step 32, the disclosed systemreceives an indication that a local user viewing electronic mail userinterface has set a follow up flag on one of the messages contained inthe message list. At step 34, an indication is stored of the flaggedelectronic mail message in association with another user in a list ofusers with which flagged electronic mail messages are associated. Thelist of users with which flagged electronic mail messages are associatedis accessible to an instant messaging application.

At step 36, the disclosed system detects a communication session beingprovided to the local user through an instant messaging user interfaceprovided by an instant messaging application. The disclosed system thendetermines at step 38 whether any of the other participants in theinstant messaging session are associated with flagged electronic mailmessages, for example by determining whether any other participants haveentries in the list of users associated with flagged electronic mailmessages.

For each of the other instant messaging session participants that areassociated with at least one flagged electronic mail message, at step 40the disclosed system displays an indication of each associated flaggedelectronic mail message. In this way, the local user is made aware ofall the flagged electronic mail messages associated with theparticipants of the instant messaging session while the instantmessaging session is underway, thus allowing the local user topotentially follow up on those flagged electronic mail messages throughthe instant messaging session.

At step 42, the disclosed system detects the end of the instantmessaging session. In response to detecting the end of the instantmessaging session, at step 44 the disclosed system queries the localuser as to whether any of the follow up flags should be removed from theflagged electronic mail messages associated with the other sessionparticipants (i.e. removed from the flagged electronic indicated at step40). The user is then enabled to remove any such follow up flags, as maybe appropriate depending on whether the user followed up on any of theflagged messages during the instant messaging session that is beingterminated.

FIG. 3 is a simplified screen shot showing an Instant Messaging UserInterface 50 as generated by an illustrative embodiment of the disclosedsystem. As shown in FIG. 3, the Instant Messaging User Interface 50includes a Buddy List 52, a Chat Transcript Area 54, and a Message EntryArea 56. The Chat Transcript Area 54 is used to display instant messagesexchanged within a current instant messaging session between a localuser and one or more other session participants. In order to enter amessage into the current session, the local user enters the message intothe Message Entry Area 56.

The Buddy List 2 includes an entry for each of the local user's buddies(User 1, User 2, User 3, etc.), as well as for one or more user groups(Group 1, Group 2, etc.). If a flagged electronic mail message existsfor a buddy, the entry for that buddy includes a visual indication ofthe flagged message, or the total number of flagged messages for thatbuddy. For example, as shown in FIG. 3, there is one flagged electronicmail message associated with the buddy User 1. Accordingly, the text “1flagged message” included within parenthesis next to “User 1” provides avisual indication to the local use that one flagged electronic mailmessage is currently associated with User 1. Similarly, the text “3flagged messages” displayed in parenthesis adjacent to “User 3”indicates to the local user provides a visual indication that threeflagged electronic mail messages are currently associated with User 3.

While for purposes of illustration in FIG. 3 text within parenthesis isused to indicate a number of electronic mail messages associated witheach user in the Buddy List 52, the disclosed system is not so limited.Accordingly, those skilled in the art will recognize that any distinctvisual indication may be used in the alternative to provide the visualindication to the local user of whether any flagged electronic mailmessages are associated with a given buddy.

As further shown in FIG. 3, the disclosed system may be embodied toprovide a Visual Indications 58 of flagged electronic mail messagesassociated with other participants in a current instant messagingsession. For example, the Visual Indications 58 may include a list offlagged messages associated with other participants in the currentinstant messaging session, where each list entry includes a subject ofthe corresponding flagged message, and can be clicked on to access thecomplete message. Alternatively, the Visual Indication(s) 58 may be madeup of one or more background windows displaying all or part of each ofthe flagged messages associated with the other participants in thecurrent instant messaging session. Where more than one such flaggedmessage exists, the windows displaying the messages to the local usermay be stacked or cascaded behind the Instant Messaging User Interface50. Those skilled in the art will recognize that the above describedtechniques for displaying the flagged electronic mail messagesassociated with other participants in the current instant messagingsession to the local user are only two possibilities, and thatalternative embodiments may use other specific types and/or arrangementsof user interface display objects for this purpose.

FIG. 4 is a simplified screen shot showing a User Interface DisplayObject 60 generated by an illustrative embodiment of the disclosedsystem to query a local user for removal of follow-up flags onelectronic mail messages associated with other participants in aninstant messaging session that is currently being terminated. Inresponse to detecting termination of an instant messaging session, anembodiment of the disclosed system generates the User Interface DisplayObject 60 to allow the local user to remove follow-up flags from anyflagged electronic mail messages associated with other participants inthe instant messaging session. The List 62 displays all the electronicmail messages having follow-up flags that are associated with the otherparticipants in the instant messaging session. In the example of FIG. 4,the List 62 displays the subject of each such flagged electronic mailmessage, and the local user can click on a specific message subject toview the complete message. If during the instant messaging session thelocal user resolved the issue for which follow up was required for agiven one of the flagged messages, the local user can check thecorresponding check box to cause the follow up flag for that message tobe removed.

While in the example of FIG. 4 check boxes are shown for purposes ofillustration as a possible technique for indicating that follow-up flagsshould be removed, the present system is not so limited. Those skilledin the art will therefore realize that any specific alternative userinterface mechanism may be used to allow the local user to indicate thata follow-up flag should be removed from a flagged electronic mailmessage associated with another participant in an instant messagingsession that is being terminated.

While the above description makes reference to enabling a user to followup on flagged electronic mail messages through an instant messagingapplication, the disclosed system is not so limited. Accordingly, oneskilled in the art will recognize that the disclosed system may beembodied to be used with any specific kinds of communicationapplications.

As will be appreciated by one skilled in the art, aspects of the presentinvention may be embodied as a system, method or computer programproduct. Accordingly, aspects of the present invention may take the formof an entirely hardware embodiment, an entirely software embodiment(including firmware, resident software, micro-code, etc.) or anembodiment combining software and hardware aspects that may allgenerally be referred to herein as a “circuit,” “module” or “system.”Furthermore, aspects of the present invention may take the form of acomputer program product embodied in one or more computer readablemedium(s) having computer readable program code embodied thereon. Anycombination of one or more computer readable medium(s) may be utilized.The computer readable medium may be a computer readable signal medium ora computer readable storage medium. A computer readable storage mediummay be, for example, but not limited to, an electronic, magnetic,optical, electromagnetic, infrared, or semiconductor system, apparatus,or device, or any suitable combination of the foregoing. More specificexamples (a non-exhaustive list) of the computer readable storage mediumwould include the following: an electrical connection having one or morewires, a portable computer diskette, a hard disk, a random access memory(RAM), a read-only memory (ROM), an erasable programmable read-onlymemory (EPROM or Flash memory), an optical fiber, a portable compactdisc read-only memory (CD-ROM), an optical storage device, a magneticstorage device, or any suitable combination of the foregoing. In thecontext of this document, a computer readable storage medium may be anytangible medium that can contain, or store a program for use by or inconnection with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a propagated data signalwith computer readable program code embodied therein, for example, inbaseband or as part of a carrier wave. Such a propagated signal may takeany of a variety of forms, including, but not limited to,electro-magnetic, optical, or any suitable combination thereof. Acomputer readable signal medium may be any computer readable medium thatis not a computer readable storage medium and that can communicate,propagate, or transport a program for use by or in connection with aninstruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmittedusing any appropriate medium, including but not limited to wireless,wireline, optical fiber cable, RF, etc., or any suitable combination ofthe foregoing.

Computer program code for carrying out operations for aspects of thepresent invention may be written in any combination of one or moreprogramming languages, including an object oriented programming languagesuch as Java, Smalltalk, C++ or the like and conventional proceduralprogramming languages, such as the “C” programming language or similarprogramming languages. The program code may execute entirely on theuser's computer, partly on the user's computer, as a stand-alonesoftware package, partly on the user's computer and partly on a remotecomputer or entirely on the remote computer or server. In the latterscenario, the remote computer may be connected to the user's computerthrough any type of network, including a local area network (LAN) or awide area network (WAN), or the connection may be made to an externalcomputer (for example, through the Internet using an Internet ServiceProvider).

Aspects of the present invention are described below with reference toflowchart illustrations and/or block diagrams of methods, apparatus(systems) and computer program products according to embodiments of theinvention. It will be understood that each block of the flowchartillustrations and/or block diagrams, and combinations of blocks in theflowchart illustrations and/or block diagrams, can be implemented bycomputer program instructions. These computer program instructions maybe provided to a processor of a general purpose computer, specialpurpose computer, or other programmable data processing apparatus toproduce a machine, such that the instructions, which execute via theprocessor of the computer or other programmable data processingapparatus, create means for implementing the functions/acts specified inthe flowchart and/or block diagram block or blocks.

These computer program instructions may also be stored in a computerreadable medium that can direct a computer, other programmable dataprocessing apparatus, or other devices to function in a particularmanner, such that the instructions stored in the computer readablemedium produce an article of manufacture including instructions whichimplement the function/act specified in the flowchart and/or blockdiagram block or blocks. The computer program instructions may also beloaded onto a computer, other programmable data processing apparatus, orother devices to cause a series of operational steps to be performed onthe computer, other programmable apparatus or other devices to produce acomputer implemented process such that the instructions which execute onthe computer or other programmable apparatus provide processes forimplementing the functions/acts specified in the flowchart and/or blockdiagram block or blocks.

The flowchart and block diagrams in the Figures illustrate thearchitecture, functionality, and operation of possible implementationsof systems, methods and computer program products according to variousembodiments of the present invention. In this regard, each block in theflowchart or block diagrams may represent a module, segment, or portionof code, which comprises one or more executable instructions forimplementing the specified logical function(s). It should also be notedthat, in some alternative implementations, the functions noted in theblock may occur out of the order noted in the figures. For example, twoblocks shown in succession may, in fact, be executed substantiallyconcurrently, or the blocks may sometimes be executed in the reverseorder, depending upon the functionality involved. It will also be notedthat each block of the block diagrams and/or flowchart illustration, andcombinations of blocks in the block diagrams and/or flowchartillustration, can be implemented by special purpose hardware-basedsystems that perform the specified functions or acts, or combinations ofspecial purpose hardware and computer instructions.

The terminology used herein is for the purpose of describing particularembodiments only and is not intended to be limiting of the invention. Asused herein, the singular forms “a”, “an” and “the” are intended toinclude the plural forms as well, unless the context clearly indicatesotherwise. It will be further understood that the terms “comprises”and/or “comprising,” when used in this specification, specify thepresence of stated features, integers, steps, operations, elements,and/or components, but do not preclude the presence or addition of oneor more other features, integers, steps, operations, elements,components, and/or groups thereof.

The corresponding structures, materials, acts, and equivalents of allmeans or step plus function elements in the claims below are intended toinclude any structure, material, or act for performing the function incombination with other claimed elements as specifically claimed. Thedescription of the present invention has been presented for purposes ofillustration and description, but is not intended to be exhaustive orlimited to the invention in the form disclosed. Many modifications andvariations will be apparent to those of ordinary skill in the artwithout departing from the scope and spirit of the invention. Theembodiment was chosen and described in order to best explain theprinciples of the invention and the practical application, and to enableothers of ordinary skill in the art to understand the invention forvarious embodiments with various modifications as are suited to theparticular use contemplated.

1. A system comprising: at least one processor and at least one computerreadable memory, said computer readable memory having stored thereonprogram code for, when executed on said at least processor, providing amulti-application follow-up mechanism by detecting that a user has set afollow-up flag on a message within a first communication application,associating, responsive to said detecting that said user has set saidfollow-up flag on said message, said flagged message with another user,such that said flagged message is available to a second communicationapplication, wherein said associating said flagged message with saidother user includes adding an indication of said message to an entryassociated with said other user contained in a list of other users withwhom flagged messages are associated, detecting a communication sessionwith said other user provided through said second communicationapplication, displaying, responsive to said detecting said communicationsession with said other user provided through said second communicationapplication and said entry for said other user contained in said list ofother users with whom flagged messages are associated, an indication ofsaid flagged message, wherein said displaying said indication of saidflagged messages includes displaying at least a portion of said flaggedmessage, detecting termination of said communication session provided bysaid second communication application, and displaying, responsive tosaid detecting of said termination of said communication sessionprovided by said second communication application, a user interfaceobject enabling said user to remove said follow-up flag from saidflagged message.
 2. The system of claim 1, further comprising: whereinsaid first communication application is an electronic mail application;wherein said second communication application is an instant messagingapplication; and wherein said message comprises an electronic mailmessage contained in an electronic mail mailbox provided for said userby said electronic mail application.
 3. The system of claim 1, furthercomprising: wherein said displaying said indication of said flaggedmessage includes displaying a list of all flagged messages associatedwith said other user.
 4. The system of claim 1, further comprising:wherein said associating said flagged message with said other userfurther includes determining that said other user is a member of agroup, and responsive to said determining that said other user is amember of said group, associating said flagged message with each memberof said group.
 5. The system of claim 1, wherein said firstcommunication application comprises an electronic mail application, andwherein said second communication comprises an instant messagingapplication, wherein said program code further provides saidmulti-application follow-up mechanism by: displaying an indication ofthe number of flagged electronic mail messages associated with eachbuddy contained in said user's instant messaging buddy list.
 6. A methodembodied in at least one computer system for providing amulti-application follow-up mechanism, including steps performed by saidcomputer system comprising: detecting that a user has set a follow-upflag on a message within a first communication application, associating,responsive to said detecting that said user has set said follow-up flagon said message, said flagged message with another user, such that saidflagged message is available to a second communication application,wherein said associating said flagged message with said other userincludes adding an indication of said message to an entry associatedwith said other user contained in a list of other users with whomflagged messages are associated, detecting a communication session withsaid other user provided through said second communication application,displaying, responsive to said detecting said communication session withsaid other user provided through said second communication applicationand said entry for said other user contained in said list of other userswith whom flagged messages are associated, an indication of said flaggedmessage, wherein said displaying said indication of said flaggedmessages includes displaying at least a portion of said flagged message,detecting termination of said communication session provided by saidsecond communication application; and displaying, responsive to saiddetecting of said termination of said communication session provided bysaid second communication application, a user interface object enablingsaid user to remove said follow-up flag from said flagged message. 7.The method of claim 6, further comprising: wherein said firstcommunication application is an electronic mail application; whereinsaid second communication application is an instant messagingapplication; and wherein said message comprises an electronic mailmessage contained in an electronic mail mailbox provided for said userby said electronic mail application.
 8. The method of claim 6, furthercomprising: wherein said displaying said indication of said flaggedmessage includes displaying a list of all flagged messages associatedwith said other user.
 9. The method of claim 6, further comprising:wherein said associating said flagged message with said other userfurther includes determining that said other user is a member of agroup, and responsive to said determining that said other user is amember of said group, associating said flagged message with each memberof said group.
 10. The method of claim 6, wherein said firstcommunication application comprises an electronic mail application, andwherein said second communication comprises an instant messagingapplication, and further comprising: displaying an indication of thenumber of flagged electronic mail messages associated with each buddycontained in said user's instant messaging buddy list.
 11. A computerprogram product comprising: a non-transitory computer readable storagemedium having stored thereon program code for providing amulti-application follow-up mechanism, said program code includingprogram code for detecting that a user has set a follow-up flag on amessage within a first communication application, program code forassociating, responsive to said detecting that said user has set saidfollow-up flag on said message, said flagged message with another user,such that said flagged message is available to a second communicationapplication, wherein said associating said flagged message with saidother user includes adding an indication of said message to an entryassociated with said other user contained in a list of other users withwhom flagged messages are associated, detecting a communication sessionwith said other user provided through said second communicationapplication, displaying, responsive to said detecting said communicationsession with said other user provided through said second communicationapplication and said entry for said other user contained in said list ofother users with whom flagged messages are associated, an indication ofsaid flagged message, wherein said displaying said indication of saidflagged messages includes displaying at least a portion of said flaggedmessage, detecting termination of said communication session provided bysaid second communication application; and displaying, responsive tosaid detecting of said termination of said communication sessionprovided by said second communication application, a user interfaceobject enabling said user to remove said follow-up flag from saidflagged message.